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2. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   As of 2022 the installation cost of a heat pump is more than a gas boiler, but with the "Boiler Upgrade Scheme" [103] government grant and assuming electricity/gas costs remain similar their lifetime costs would be similar on average. [104]

3. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   A heat pump in combination with heat and cold storage. A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons.

4. Air source heat pump - Wikipedia

   en.wikipedia.org/wiki/Air_source_heat_pump

   Although higher cost heat pumps can be more efficient a 2024 study concluded that for the UK "from an energy system perspective, it is overall cost-optimal to design heat pumps with nominal COP in the range of 2.8–3.2, which typically has a specific cost lower than 650 £/kWth, and simultaneously to invest in increased capacities of renewable ...

5. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   The energy cost of heating is one of the main costs of operating a building in a cold climate. Some central heating plants can switch fuels for reasons of economy and convenience; for example, a home owner may install a wood-fired furnace with electrical backup for occasional unattended operation.

6. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Electrical heaters are often used as backup or supplemental heat for heat pump systems. The heat pump gained popularity in the 1950s in Japan and the United States. [14] Heat pumps can extract heat from various sources, such as environmental air, exhaust air from a building, or from the ground. Heat pumps transfer heat from outside the ...

7. Geothermal heating - Wikipedia

   en.wikipedia.org/wiki/Geothermal_heating

   Steam and hot water from the geysers began to be used to heat homes in Iceland in 1943. By this time, Lord Kelvin had already invented the heat pump in 1852, and Heinrich Zoelly had patented the idea of using it to draw heat from the ground in 1912. [22] But it was not until the late 1940s that the geothermal heat pump was successfully implemented.